webSocket

简单实用webSocket
服务端
需要socket和express

npm install --save socket.io
npm install express--save

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);

app.get('/', function(req, res){
    res.send('
Welcome Realtime Server
');
});

io.on('connection', function(socket){
    console.log('a user connected');
    socket.on("disconnect", function() {
        console.log("a user go out");
    });
    socket.on("message", function(obj) {
        io.emit("message", obj);
    });
});

http.listen(3000, function(){
    console.log('listening on *:3000');
});

客户端

    
    
    


    

        
        
        
receive: 
    
    

打开两个页面，第一个写入后点击按钮提交

第一个页面

提交后打开第二个页面

https://github.com/littleStar123/webSocket
网上找的代码，下次再改改